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split and join

by root (Scribe)
on Nov 12, 1999 at 02:46 UTC ( #970=perltutorial: print w/replies, xml ) Need Help??

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  1. or download this
    $line="Bart  Lisa Maggie Marge Homer";
    @simpsons=split(/\s/, $line); #splits $line and uses a piece of whites
    +pace as a delimiter.
    @simpsons=split(/\s+/ $line); #now splits $line on 1 or more whitespac
    +e characters
    #@simpsons now containts ("Bart","Lisa","Maggie","Marge","Homer");
  2. or download this
    open FILE, "data.txt";
       print "Address: $address\n\n";
    close FILE;
  3. or download this
    $string=join(" ",@simpsons);
      #string now equals "Bart Lisa Maggie Marge Homer";
    $address="42 Tulip Lane, Holland MI, 49423";
    #$string is now equal to "Bob|555-5555|42 Tulip Lane, Holland MI, 4942

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Node Type: perltutorial [id://970]
[shmem]: hmm.. which makes emerge the question: is there a way to attach a subroutine to a variable, which is run as soon as that variable changes?
[moritz]: through a tie?
[shmem]: moritz: of course!
shmem slaps forehead m(
[shmem]: consider, then, @CBMonks as a tied variable which triggers withdrawing empty cups and serving new ones
[GotToBTru]: it's always teatime somewhere

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